From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [129.241.93.19]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 076CF2006D6 for ; Wed, 17 Aug 2011 21:16:37 -0700 (PDT) Received: from trofast.ipv6.sesse.net ([2001:700:300:1803:20e:cff:fe36:a766] helo=trofast.sesse.net) by cassarossa.samfundet.no with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1Qtuqc-0000hf-LD for bloat@lists.bufferbloat.net; Thu, 18 Aug 2011 07:08:55 +0200 Received: from root by trofast.sesse.net with local (Exim 4.76) (envelope-from ) id 1QtuqV-00057W-BF for bloat@lists.bufferbloat.net; Thu, 18 Aug 2011 07:08:47 +0200 Date: Thu, 18 Aug 2011 07:08:47 +0200 From: "Steinar H. Gunderson" To: bloat@lists.bufferbloat.net Message-ID: <20110818050847.GA19458@uio.no> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Operating-System: Linux 2.6.37.3 on a x86_64 User-Agent: Mutt/1.5.21 (2010-09-15) Subject: Re: [Bloat] Not all the world's a WAN X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Aug 2011 04:16:38 -0000 On Wed, Aug 17, 2011 at 06:26:00PM -0700, Patrick J. LoPresti wrote: > - Speed = Throughput (latency is irrelevant) > - TCP retransmissions are a disaster, not least because > - 200ms is an eternity Note that you can adjust this; if nothing else by hacking the kernel. If you only care about intra-cluster anyway, setting it to something like 2ms would probably help a lot. /* Steinar */ -- Homepage: http://www.sesse.net/